Cadillac Lyriq 2023–2025 — technical service bulletin
Bulletin PIP5981B · NHTSA communication 11011359 · issued Nov 25, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2023–2025
model years
14
vehicle entries
Official summary
This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.
Vehicles covered
- 2023 Cadillac Lyriq
- 2024 Cadillac Lyriq
- 2025 Cadillac Lyriq
- 2024 Chevrolet Blazer EV
- 2025 Chevrolet Blazer EV
- 2024 Chevrolet Equinox EV
- 2025 Chevrolet Equinox EV
- 2024 Chevrolet Silverado EV
- 2025 Chevrolet Silverado EV
- 2023 GMC Hummer EV Pickup
- 2024 GMC Hummer EV Pickup
- 2025 GMC Hummer EV Pickup
- 2024 GMC Sierra EV
- 2025 GMC Sierra EV
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.